Home / 988,689.09-1,483,476.71-455,924.55

Finding the Fourth Proportional to 988,689.09, 1,483,476.71 and 455,924.55

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Solution

The fourth proportional to 988,689.09, 1,483,476.71 and 455,924.55 is: 684,091.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,689.09 : 1,483,476.71 = 455,924.55 : x
  2. Step 2: Convert to fraction form
    988,689.09/1,483,476.71 = 455,924.55/x
  3. Step 3: Cross multiply
    988,689.09x = 1,483,476.71 × 455,924.55
  4. Step 4: Simplify right side
    988,689.09x = 676,353,451,442.23
  5. Step 5: Solve for x
    x = 676,353,451,442.23/988,689.09
  6. Step 6: Final answer
    x = 684,091.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.